WO2006047107A3 - Method of scanning for beacon transmissions in a wlan - Google Patents

Method of scanning for beacon transmissions in a wlan Download PDF

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Publication number
WO2006047107A3
WO2006047107A3 PCT/US2005/037035 US2005037035W WO2006047107A3 WO 2006047107 A3 WO2006047107 A3 WO 2006047107A3 US 2005037035 W US2005037035 W US 2005037035W WO 2006047107 A3 WO2006047107 A3 WO 2006047107A3
Authority
WO
WIPO (PCT)
Prior art keywords
wireless station
channel
access point
wlan
scanning
Prior art date
Application number
PCT/US2005/037035
Other languages
French (fr)
Other versions
WO2006047107A2 (en
Inventor
Brian K Smith
Suhas Mitra
Original Assignee
Motorola Inc
Brian K Smith
Suhas Mitra
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc, Brian K Smith, Suhas Mitra filed Critical Motorola Inc
Priority to CN2005800367382A priority Critical patent/CN101444130B/en
Priority to EP05808773.5A priority patent/EP1808030B1/en
Publication of WO2006047107A2 publication Critical patent/WO2006047107A2/en
Publication of WO2006047107A3 publication Critical patent/WO2006047107A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A wireless station (114) is within range of more than one access point (120, 124) transmitting on the same channel (Figure 1). The wireless station is associated with one access point and not the other. Consequently the wireless station may receive undesired beac (304) and desired beacons (302) on the channel. To optimize power save operation the wireless station arbitrates between a scan an shut down scanning procedure (708) and a timed window channel scanning procedure (724), depending on whether the desired bea is the first received beacon upon waking up from a low power state at a target beacon time.
PCT/US2005/037035 2004-10-26 2005-10-17 Method of scanning for beacon transmissions in a wlan WO2006047107A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2005800367382A CN101444130B (en) 2004-10-26 2005-10-17 method of scanning for beacon transmissions in a WLAN
EP05808773.5A EP1808030B1 (en) 2004-10-26 2005-10-17 Method of scanning for beacon transmissions in a wlan

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/973,555 US7224970B2 (en) 2004-10-26 2004-10-26 Method of scanning for beacon transmissions in a WLAN
US10/973,555 2004-10-26

Publications (2)

Publication Number Publication Date
WO2006047107A2 WO2006047107A2 (en) 2006-05-04
WO2006047107A3 true WO2006047107A3 (en) 2008-12-24

Family

ID=36206791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/037035 WO2006047107A2 (en) 2004-10-26 2005-10-17 Method of scanning for beacon transmissions in a wlan

Country Status (6)

Country Link
US (1) US7224970B2 (en)
EP (1) EP1808030B1 (en)
KR (1) KR100904786B1 (en)
CN (1) CN101444130B (en)
AR (1) AR051647A1 (en)
WO (1) WO2006047107A2 (en)

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Also Published As

Publication number Publication date
AR051647A1 (en) 2007-01-31
US20060089138A1 (en) 2006-04-27
EP1808030A2 (en) 2007-07-18
CN101444130A (en) 2009-05-27
US7224970B2 (en) 2007-05-29
KR100904786B1 (en) 2009-06-25
KR20070084567A (en) 2007-08-24
CN101444130B (en) 2011-12-14
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WO2006047107A2 (en) 2006-05-04
EP1808030A4 (en) 2009-12-09

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